Improvement in carriage-springs



I R. W. PARKER.

Carriage-Spring. 7 N0 45 265 Patented Nov. 29, 1864.

N. PETERS. PHOTO-LjTNOGRlPHER, WASflINGTON. O C.

UNITED STATES PATENT FFICE.

R. W. PARKER, OF WOBURN, MASSACHUSETTS.

IMPROVEMENT IN CARRIAGE-SPRINGS.

Specification forming part of Letters Patent No. 45,265, dated November 29, 1864.

To all whom it may concern.-

Be it known that l, R. W. PARKER, of Woburn, in the county of Middlesex and State of Massachusetts, have invented a new and Improved Spring for VheeLVehicles; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a side sectional view of my invention, taken in the line as 00, Fig. 2; Fig. 2, an inverted plan of the same.

Similar letters of reference indicate corresponding parts in the two figures.

This invention consists in having springs constructed either of metal or wood and bent or curved in bow shape, with parallel or nearly parallel sides, said springs being attached to the front and back bolsters of the vehicle, with their sides underneath the sides of the body of the latter, the body resting on the sides of the springs, and all arranged as hereinafter set forth, whereby it is believed that several advantages are obtained over the ordinary spring in present use.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the front, and B the back-bolster ot'awheel-vehicle. B B are the reaches connected to said bolsters. These parts may be of usual construction, and therefore do not require a minute description.

0 G represent two springs, which may be canstructed of either metal or wood. These springs are bent or curved in bow form, as shown at a in Fig.2, and their sides I) are parallel with each other, or about so, and they may incline upward toward the center of the body of the vehicle, at each side of it, as shown in Fig. 1.

There is no rattling or side surging or swaying of the body of the vehicle. Neither is there any forward or backward movement of the same, and the body will be retained 'in nearly a level or horizontal position, even when one person only is in a vehicle and sit ting at one side of the seat.

Springs constructed on this principle and weighing about three pounds will sustain a weight of sixteen hundred pounds, whereas the ordinary elliptic springs will sustain with safety only about thirty times their weight.

In going over rough places my improved springs have no quick trap motion, as is common with others, and they are therefoie well adapted for ambulances. They may also be applied to railroad-cars with advantage.

I do notcontine myself to the inclined sides 1) of the springs, for they may have a horizontal position, if desired.

Havingth us described my invention, what I claim as new, and desire to secure by Letters Patent, is

The springs C C, constructed with bowed ends and parallel or nearly parallel sides, attached at their ends to the front and rear bolsters of a carriage,and supporting the seat or body upon their sides between the said bolsters. all substantially as herein shown and described.

R. W. PARKER.

Witnesses:

JAMEs N. Dow, SHERMAN GoNvnRsE. 

